Appliance plug



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APPLIANGE PLUG n Filed June 24, 1929 ATTORNEYS. I

Patented June 20, 1933 UNITED STATES PATENT OFFICE FAY BEAL, OF KOKOMO, INDIANA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO GEORGE EATON, OF CLEVELAND, OHIO' APPLIANGE PLUG Application le'd June 24, 1929. Serial No. 373,214.

This invention relates to an appliance plug. The chief object of this invention is to provide a plug ot' the aforesaid type with means for removing the rictional constraint normally imposed upon a terminal prong in the insertion when inserted, and during'the rc- I moval thereof into and from a socketclip,

respectively.

The chief feature of the invention consists`in providing an exposed member upon the plug, which, when actuated, is adapted to remove the constraint normally inherent in a socket clip, so that the plug may be readily associated with terminal prongs of lan electrical appliance, and. readily detached therefrom,without requiring the manual engagement of the appliance by reason of the high :friction associationy normally between the socket clips and the prongs, and yet which will permit the usual constraint to remain imposed when the clips and prongs are associated togetherl for current supply to the apf pliance.

The full nature of the invention will bel understood from the accompanying drawing andthe following description and claims.

In the drawing Fig. 1 is a top plan view of the lower half of a plug embodying the invention. Fig. 2 is a longitudinal sectional view through the entire plug and is taken on line 2 2 of Fig. 1 and in the direction of the arrows. Fig. 3 is a longitudinal sectional view taken on line B-of Fig. 1. Fig. 4 is a transverse sectional view taken on line 4 4 of Fig. 1. Fig. 5 is a transverse sectional view taken on line 5-5 of Fig. 1.

In the drawing 10 indicates the lower half and 11 the upper half of two insulation body members providing a chamber 12 therebetween. Each of the body members is notched as at 14 andherein the same are shown two in number forming a pair of passages to slidably receive terminal prongs of an electric appliance such'as a corn popper, toaster, percolator, electric iron, chaing dish, electric grille, electric frying pan, combination electric cooker and fireless cooker, and devices of similar character.

In general all of these devices can be positioned upon the table and the house-wife usually finds little trouble, danger or dificulty in `attaching the plug of the service cord to the appliance or detaohing it therefrom when the appliance is cold. When the appliance is hot, however, the house-Wife is, with the present type of service plug, com pelled to hold the appliance with one heat protected hand and hold the plug with the other han-d to forcibly connect the two or disconnect the same.

The present invention permits attachment a and detachment, or quick disconnection with relative ease and without requiring the housewife to hold the appliance during either of these operations.

In longitudinal alignment with each of the openings 14 is a socket clip construction.

Each clip con struction includes a pair of similar members which are complementary and ,include the elongated tube formin g portion 15 with the fiared mouth 16, the curved tension portion 17 and the apertured anchoring portion 18. The two clips when positioned together form a substantially cylindrical chamber 19 but the flange portions 20 extend outwardly in abuttable relation from one side, and the longitudinal passage 21 extends along the other side. Upon the insertion of the terminal prong the clip opensk or the two members 15 slightly separate and the curvature 17 insures the frictional engagement necessary to obtain good electrical Contact and good mechanical contact sufficient to retain thel prong in the socket clip. The member 11 has molded in it, or otherwise secured to it, nuts 22 which receive the screws 23, the same having anchoring engagement with the anchoring portions 18 of the strips. 'Said screws also serve as anchorages for the terminal wires 50, see Fig. 1.

Suitably connecting the two body porti(ons together are the nuts 24 mounted by molding, or the like, and the screws 25 which as shown in Figs. 2 and 3 are recessed in the body so that the heads do not project beyond the outline of the body.

The two clips which have their laterally directed openings 21 directed towards each other and in spaced relation are provided with latcralcxtcnsions 27 which form lateral sockets directed inwardly and towards each other to receive the transverse insulation pin 28. Pin 28 in the present instance is integral with the insulation member 29, which is positioned between the two clips in substantially parallel arrangement therewith. One end of the member 29 includes a seat in the form of arccess 80 for receiving the end 3l of a fiber stem 32 terminating in a button 33. Stem 32 is slidalil-y mounted in the opening 34 provided in the member l0. A transverse pin 35 is carried by the .stem 32 and serves to prevent withdrawal of said stem. The opening 34 is enlarged at 3G to normally seat the transverse pin 35. y

The depression of the plunger S33-32 depresses the member 29 which raises the uppermost clip portions and lowers the lower-most clip portions to lseparate the same, and therefore opens or enlarges the tubular passage for the ready and easy reception ofthe prong, or the ready and easy withdrawal thereof. The housewife need only grasp the plug in one hand and press the thumb upon the member $33 to depress the same in order to readily attach or detach the plug. Release of the thumb permits the clip portions to frictionally and yieldingly engage the prongs to insure the necessary electrical and mechanical engagement when the plug is attached. Body members are also adapted to mount the usual swivel type insulated bushing 39 apertured at 40 for service wire reception, see

Fig. 1.

In Figs. 1, 2 and 4 of the drawing a positive fulcrum construction for lever 29 is disclosed at 27. The boss 100 is formed on body member 11 and a pin 101 is driven into hole 102. The lever member 29 includes opening 103 that receives the upper end of the pin 101 which herein is shown projecting through the lever member 29 but necessarily need not do so.

The invention claimed is:

l. An appliance plug including a chambered insulation body. a plurality of parallel positioned terminal prong receiving socket clips, each including a pair of socket forming portions normally constrained towards each other for prong engagement, and means including a single body exposed portion and a transverse portion for simultaneous association with all of the clip portions and interposed therebetween for simultaneouslyv separating the same for ready reception of and disconnection from the prongs.

2. A device of the character defined by claim 1 characterized by said means including a body exposed portion and a T-shaped member, the laterall portions of which are interposed between the clip portions as specified. i

b'ered insulation body, a plurality of. parallel positioned terminal prong receiving 3. An appliance plug including a chamv socket clips, each including a pair of socket forming plortions normally constrained towards eac other for prong engagement, and means including a single body exposed portion and a transverse portion for simultaneous association with all of the clip portions and interposed therebetween at a point near the receiving end of the clipsfor simultaneously separating the same for ready reception of and disconnection from the prongs.

4. An appliance plug including a chambered insulation body, a plurality of parallel positioned terminal prong receiving socket clips, each including a pair of socketl forming portions normally constrained toixcd my signature.

` FAY BEAL. 

